In recent decades, enhanced Knowledge Graph (KG) analysis has been used to extract advanced insights from data. <\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[],"targets":[],"pubblicazioni_tipologie":[778],"class_list":["post-196404","pubblicazioni","type-pubblicazioni","status-publish","hentry","pubblicazioni_tipologie-paper-en"],"acf":{"projects":{"ID":191051,"post_author":"464","post_date":"2024-07-10 16:51:29","post_date_gmt":"2024-07-10 14:51:29","post_content":"","post_title":"Application of Information Technology, Internet of Things, Peer-to-peer, to the electrical system in order to improve security and resilience","post_excerpt":"The project develops methods, tools, demonstrators and experiments to evaluate the application potential of the latest information and communication technologies for the benefit of the electro-energy system.","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"application-of-information-technology-internet-of-things-peer-to-peer-to-the-electrical-system-in-order-to-improve-security-and-resilience","to_ping":"","pinged":"","post_modified":"2024-08-09 15:59:29","post_modified_gmt":"2024-08-09 13:59:29","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.rse-web.it\/progetti\/application-of-information-technology-internet-of-things-peer-to-peer-to-the-electrical-system-in-order-to-improve-security-and-resilience\/","menu_order":0,"post_type":"progetti","post_mime_type":"","comment_count":"0","filter":"raw"},"order_posts":"","dont_show_search":false,"related_posts":false,"dont_show_hompage":false,"show_on_slider":false,"single_post_data":{"titolo_spot":"","post_content":"
Various companies have integrated legacy relational databases with semantic technologies using Ontology-Based Data Access (OBDA). In practice, this approach allows analysts to write SPARQL queries on both Knowledge Graphs (KGs) and relational SQL data sources, making most implementation details transparent. However, the volume of data is continuously increasing, and a growing number of companies are adopting distributed storage platforms and distributed computing engines. There is a gap between big data and semantic technologies. For instance, one of the reference OBDA systems is limited to legacy relational databases and still lacks compatibility with the big data analysis engine Apache Spark. This paper introduces Chimera, an open-source software suite designed to bridge this gap. Chimera enables a new type of bidirectional data science pipeline. Data scientists can query data stored in a data lake using SPARQL through Ontop and SparkSQL, saving the semantic results of such analysis back into the data lake. This new type of pipeline semantically enriches Spark data before saving it again.<\/p>\n","scarica_file":false,"link_estreno":[{"link_text":"Download Memory","link":"https:\/\/link.springer.com\/chapter\/10.1007\/978-3-030-88361-4_27"}],"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2021-10-28","autori":"Ma. Belcao, E. Falzone, E. Della Valle (Politecnico di Milano), E. Bionda (RSE S.p.A.)","destinazione":"20th International Semantic Web Conference, ISWC 2021, Online October 24-28, 2021","rif_rse":"21012536"},"satellite_post_url":""},"yoast_head":"\n